Browse Reference Articles
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Water pollution
Water pollution is a large set of adverse effects upon water bodies (lakes, rivers, oceans, groundwater) caused by human activities. Although natural phenomena such as volcanoes, storms, earthquakes ... > more -
Typhoon Tip
Typhoon Tip was the most intense and largest tropical cyclone on record. The storm weakened greatly before landfall, but still caused widespread flood damage across most of Japan during the 1979 ... > more -
Invasive species
Invasive species is a phrase with several definitions. The first definition expresses the phrase in terms of non-indigenous species (e.g. plants or animals) that adversely effect the habitats they ... > more -
Lar Gibbon
The Lar Gibbon (Hylobates lar), also known as the White-handed Gibbon, is a primate in the Hylobatidae or gibbon family. It is one of the more well-known gibbons and is often seen in ... > more -
Shaanxi Earthquake
The Shaanxi earthquake or Hua County Earthquake is the deadliest earthquake on record, killing approximately 830,000 ... > more -
Organic lawn management
Organic lawn management is the practice of establishing and caring for a garden lawn without the use of chemical inputs such as pesticides or artificial fertilisers. The garden lawn is a place where ... > more -
Growth ring
Growth rings (or "tree rings" or "annular rings") can be seen in a horizontal cross section cut through the trunk of a tree. Visible rings result from the change in growth speed through the seasons ... > more -
Activated sludge
Activated sludge is a process in sewage treatment in which air or oxygen is forced into sewage liquor to develop a biological floc which reduces the organic content of the ... > more -
Unified neutral theory of biodiversity
The unified neutral theory of biodiversity and biogeography is a theory and the title of a monograph by ecologist Stephen Hubbell. The theory aims to explain the diversity and relative abundance of ... > more
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